T SET AIR FAULTS Flashcards
DRIVER ACTIONS LEAVING CREW COMPT
— —
APPLY PB
CUT OUT
LOCK CREW COMPT
DRIVER RETURNING CREW COMPT
ENTER COMPT
CUT IN
— —
RELEASE PB
RELIEVING DRIVER IN SERVICE
EXCHANGE INFO
BELLS WITH GUARD TRAIN DEFECTS HANDLING CANs RUN NO TWAs SIGNAL AHEAD ANY OTHER INFO
DURING PREP HOW WOULD U REPORT A FAULT
SHED SUPERVISOR AND TSR
DURING PREP TO REPORT A FAULT IN AN OUT DEPOT
MECH CONTROL AND TSR
IF EQUIP ISOLATED WHO DO U TELL
MECH CONTROL AND COMPILE TSR
MIN EQUIP
AIR BELLOWS
MAINT
ALL MUST BE INFLATED
IN SERVICE
ANY DEFECTIVE CAN CONTINUE MAX 65KMH
MIN EQUIP
SIV
MAINT
3 OP
IN SERVICE
3 OP
MIN EQUIP
COMPRESSORS
MAINT
3 OP
IN SERVICE
3 OP
MIN EQUIP
DRIVER SAFETY SYS
MAINT
ALL MUST BE OPERATIONAL ON TERMINAL ENDS
IN SERVICE
RE MARSHAL OR TWP 122
MIN EQUIP
TRACTION MOTORS
MAINT
7 PAIRS OP
IN SERVICE
5 PAIRS OP
TWP 122
DRIVER SAFETY SYS PROC
ONLY ONE CANNOT USE WHERE CONTROL GOV IS POWERING WITH BP <250kPa
COMPRESSORS DEFECTIVE
INDICATIONS
TMS WILL INDICATE COMP FAILURE
NO NOISE
LOW NO MR AIR
POSSIBLE CAUSES FOR COMP NOT WORKING
NO PANTO OR 1500V LOW TENSION CONTROL BATT AUX RELAY TRIPPED MAIN COMP AND COMP SYNC MCBS TRIPPED COMP AUX RELAY TRIPPED COMPRESSOR HT FUSE BLOWN
PROCEDURE TO RECTIFY DEFECTIVE COMP
SECURE TRAIN AND PROCEED TO AFFECTED CAR
CHECK PANTO RAISED AND 1500V HIGH TENSION IS AVAIL
ENSURE MAIN COMP AND COMP SYNC MCBS ARE SET
ENSURE AUX RELAY SET
CONTROL CURRENT AVAIL CHECK CONTROL BATT (LEDS IN SPEEDO AND AMMETER)
NOTIFY MECH CONTROL
COMPRESSOR RUNNING CONTINUOUSLY
INDICATIONS
MR GAUGE SHOWING OVER OR UNDERCHARGING MR AIR
SAFETY VALVE CONTINUOUSLY BLOWING
CONSTANT NOISE OF COMPRESSOR AND OR BURNING SMELL
UNDERCHARGING MR AIR
POSSIBLE LEAK
REASONS FOR COMP RUNNING CONTINUOUSLY
MR LEAKAGE
FAULTY COMP GOV
PROCEDURE TO IDENTIFY THE CAR WHICH HAS DEFECTIVE COMP GOV
SECURE TRAIN
TEST EACH COMP GOV IN SUCCESSION BY TRIPPING MAIN COMP TO SEE IF COMPRESSORS STOP
IF COMPRESSORS DO NOT STOP RESET MCB AND PROCEED TO FOLLOWING CARS AND TEST EACH COMP IN TURN
WHEN COMP STOP RUNNING WITH ONE MAIN COMP MCB TRIPPED, LEAVE MAIN COMP TRIPPED. LEAVE COMP SYNC MCB SET AS COMP WILL RUN OFF OTHER COMP GOVS
NOTIFY MECH CONTROL AND WORK AS DIRECTED
FRACTURE MAIN RES TANK
INDICATIONS
CONSTANT LEAK MR THROUGH MR TANKS
FRACTURE MAIN RES TANK
POSSIBLE CAUSE
HOLE
FRACTURE IN MR TANK
WHAT ACTIONS WILL U TAKE WHEN THERE IS A FRACTURE IN THE MR TANK
CLOSE MRS IC
TRIP MAIN COMP AND COMP SYNC MCBs
PROCEED ON SUPPLY FROM OTHER COMPRESSORS
CHECK MIN EQUIP
HOW WOULD YOU IDENTIFY A DEFECTIVE PV RV
OVERCHARGE OR UNDERCHARGE OF BP WITH BH IN RELEASE AND RUNNING
IF DBCIC CLOSED AND BP DOESNT FALL TO ZERO
PROCEDURE FOR WORKING A TRAIN WITH DEFECTIVE PV RV
DRIVER CLOSES DBCIC
GUARD OPENS DBCIC FROM NORMAL WORKSTATION
CHECK BP IS FULLY RESTORED
IF EP AVAIL PROCEED AS NORMAL
IF EP TRIPS OUT STOP TRAIN USING EMERG BRAKES ONLY
WORK OUT OF SERVICE MAX SPEED 25 KMH
BEFORE CUTTING OUT CONTROLS TELL GUARD TO CLOSE DBCIC
EMERG VALVE DEFECTIVE
INDICATION
VENTING OF BP AIR FROM BELOW BRAKE STAND EVEN IF BH IS MOVED TO ANY POSITION OTHER THAN EMERG
PROC TO RECTIFY A DEFECTIVE EMERG VALVE
OPERATE BH FROM REL AND RUNNING TO EMERG AND BACK TO REL AND RUNNING
REPEAT THIS PROC
IF UNSUCCESSFUL
CALL GUARD FWD
BEFORE GUARD ALIGHTS CONDUCT A RISK ASSESSMENT AND ORGANISE PROTECTION IF NECESS
ASK GUARD TO CLOSE BV DRIVER CLOSE DBCIC
ASK GUARD TO OPEN BV DRIVER OPEN DBCIC
REPEAT TWICE TO TRY TO RECTIFY
IF STILL UNSUCCESSFUL TREAT AS BP FAILURE ON LEAD CAR
WHY FOR EMERG VALVE FAILURE DO WE CYCLE BV AND DBCIC
FORCES MR AIR INTO BRAKE STAND
HAVING 0kPa BP ALSO ASSISTS
HOW WOULD U STOP THE TRAIN IF THE BH BECAME SIEZED IN REL AND RUN
DROP DEADMAN
EMERG BRAKE TAP
CLOSE DBCIC PREVENTS RECHARGING
POSSIBLE CAUSES LOSS BP AIR
PV RV FAILURE TRIP ACTIVATION DERAILED DIVIDED VIGO ACTIVATED DUMP VALVE DEFECTIVE REV IN ISOL EMERG BP ISOL COCK OPEN BH IN EMERG DEADMAN ACTIVATED HOLE IN BP HOSE BP THROUGH COCK OPEN TERMINAL END EMERG VALVE DEFECTIVE LOSS LOW TENSION MCBS TRIPPED VIGO AUX CONTROL TRAIN CONTROL CONTROL POSITIVE TERMINAL ENDS
PROC FOR LOSS BP AIR
CLOSE DBCIC AND BRING TRAIN TO STAND IN FULL SERVICE
IF BP FALLS TO ZERO CONTACT GUARD AND ENSURE THE TRAIN HAS NOT DERAILED OR DIVIDED AND IS NOT OBSTRUCTING ADJ LINES
IF UNSURE OF CONDITION OF THE TRAIN OR ANY ADJ LINES IMMEDIATELY PROTECT ANY ADJ RUNNING LINES BY MAKING EMERG CALLS
IF TRAIN IS NOT FOULING ADJ RUNNING LINES OPEN DBCIC AND NOTE BP PRESSURE
IF BP RESTORES CONTINUE AS NORMAL
IF BP DOESNT RESTORE TO 425kPa
IF BP DOESNT RESTORE TO 425kPa WITH ASSISTANCE FROM THE GUARD SECURE THE TRAIN. NOTIFY SIGNALLER AND ARRANGE PROTECTION IF REQD
CALL GUARD FWD LEAVE DRIVERS CONTROLS CUT IN WITH BH IN FULL SERVICE. HAVE GUARD STAND BY IN THE VACATED DRIVERS WORK STATION
BEFORE ALIGHTING FROM CREW COMPT CONDUCT RISK ASSESSMENT
PROCEED BACK ALONG THE TRAIN LISTENING FOR BLOW OF AIR. IF POSSIBLE RECTIFY THE FAULT
BP FAILURE
CAR 1
CLOSE BP THROUGH COCKS SPB MUST WORK OR COVER VEH NEEDED MANUALLY RELEASE SPB BUTTONS CLOSE TVIC DRAIN SUPP RES DRIVER REAR CAR GUARD FWD CAR PROPEL 10KMH MOVE PAX AND NIGHTSAFE
BP FAILURE
CAR 2
CLOSE BP THROUGH COCKS MANUALLY RELEASE SPB BUTTONS CLOSE TVIC DRAIN SUPP RES DRIVER REAR CAR GUARD FWD CAR PROPEL 10KMH GUARD OPEN DBCIC CAR 1 AND ASSIST BRAKING IF REQD
BP FAILURE
CAR 3
CLOSE BP THROUGH COCKS MANUALLY RELEASE SPB BUTTONS CLOSE TVIC DRAIN SUPP RES DRIVER REAR CAR GUARD FWD CAR PROPEL 10KMH GUARD OPEN DBCIC CAR 1 AND ASSIST BRAKING IF REQD
BP FAILURE
CAR 4
CLOSE BP THROUGH COCKS MANUALLY RELEASE SPB BUTTONS CLOSE TVIC DRAIN SUPP RES DRIVER REAR CAR GUARD FWD CAR PROPEL 10KMH GUARD OPEN DBCIC CAR 1 AND ASSIST BRAKING IF REQD
BP FAILURE
CAR 5
CLOSE BP THROUGH COCKS MANUALLY RELEASE SPB BUTTONS CLOSE TVIC DRAIN SUPP RES DRIVER FRONT CAR GUARD REAR CAR MAX 25KMH GUARD OPEN DBCIC CAR 8 AND ASSIST BRAKING IF REQD
BP FAILURE
CAR 6
CLOSE BP THROUGH COCKS MANUALLY RELEASE SPB BUTTONS CLOSE TVIC DRAIN SUPP RES DRIVER FRONT CAR GUARD REAR CAR MAX 25KMH GUARD OPEN DBCIC CAR 8 AND ASSIST BRAKING IF REQD
BP FAILURE
CAR 7
CLOSE BP THROUGH COCKS MANUALLY RELEASE SPB BUTTONS CLOSE TVIC DRAIN SUPP RES DRIVER FRONT CAR GUARD REAR CAR MAX 25KMH GUARD OPEN DBCIC CAR 8 AND ASSIST BRAKING IF REQD
BP FAILURE
CAR 8
CLOSE BP THROUGH COCKS SPB MUST WORK OR COVER VEH NEEDED MANUALLY RELEASE SPB BUTTONS CLOSE TVIC DRAIN SUPP RES DRIVER FRONT CAR GUARD REAR CAR MAX 25KMH MOVE PAX AND NIGHTSAFE
WHY DOES GUARD OPEN DBCIC FOR BP FAIL
TO ALLOW THE TV TO REL AUTOBRAKES
OTHERWISE WOULD ALL NEED TO BE ISOL OR STUCK ON
TANGARA SAFETY APPARATUS CONSISTS OF
DEADMAN HANDLE DEADMAN FOOT PEDAL TRIP DUMP VALVE CONTROL GOV VIGO
INDICATIONS OF FAILED SAFETY APPARATUS
INABILITY TO MAINTAIN BP PRESS
INABILITY TO OBTAIN CONTROL CURRENT
NO PENALTY APPLICATION
FAILURE OF TRIP OR TRIP ARM BROKEN
ISOLATE TRIP AND CLOSE SAI COCK AND LATCH UP
OMET QW TO PUSH EMPB TO GET CONTROL CURRENT
VIGO FAILURE
INABILITY TO ACK OR DOES NOT RESTORE AFTER PENALTY
CLOSE SAI
TRIP VC MCB
OMET QW TO PUSH EMPB TO GET CONTROL CURRENT
DEADMAN FAILURE
FAILED TO ACTIVATE
OBTAIN QW TO TRAVEL WITH DRIVER TO ACT AS HUMAN DEADMAN
DEADMAN FAILURE
FAILED TO SET
CONSTANTLY BLOWING AIR
CLOSE SAI COCK
OBTAIN OMET QW TO PUSH EMPB TO GET CONTROL CURRENT
CONTROL GOV FAILURE
TRACTION POWER CANNOT BE OBTAINED
OMET QW TO PUSH EMPB
NOTIFY SIGNALLER AND MECH CONTROL
WORK AS DIRECTED
CONTROL GOV FAILURE
TRACTION OBTAINED WITH INSUFF BP
DO NOT MOVE TRAIN UNSAFE
NOTIFY SIGNALLER AND MECH CONTROL
WORK AS DIRECTED
WHAT IS INDICATED IF THE BRAKES FAIL TO RELEASE ON A CAR
SLUGGISH TRAIN
POSSIBLE SMOKE FROM UNDERNEATH AFFECTED CAR
WHAT IS THE PROC FOR CUTTING OUT AUTO BRAKES ON A CAR
CLOSE TVIC
DRAIN SUPP RES
WHAT IS REQD BEFORE CUTTING OUT AUTO BRAKES ON TERMINAL END
SPB WORKING
MOVE PAX
CREW MEMBER TRAVEL IN CAR
MAX SPEED 25 KMH
HOW TO WORK A TRAIN WITH AUTO BRAKES ISOLATED WHEN
TERMINAL END DEFECTIVE AND SPB WORKING
4 THINGS
HOW TO WORK TRAIN WITH AUTO BRAKES ISOLATED WHEN
TERMINAL CAR IS DEFECTIVE AND SPB NOT WORKING
NEED COVER VEH
HOW TO WORK A TRAIN WITH AUTO BRAKES ISOL WHEN
NON TERMINAL CAR DEFECTIVE
NIL
MAX SPEED
1 IN 8 CARS OUT
PROVIDED NOT TERMINAL CAR
NORMAL SPEED
2 IN 8 CARS
80 KMH
AUTOBRAKES ISOL
3 in 8 CARS
25 KMH
AUTOBRAKES ISOL
MORE THAN 3 in 8 CARS
DISABLED
HOW IS EP BRAKE ENERGISED
REVERSER OUT OF ISOL
EP MCB SET
HOW DO U ISOLATE A DEFECTIVE EP BRAKE UNIT
CLOSE EP IC
DRAIN SUPP RES
ON TERMINAL ENDS
TRIP EP MCB
DRIVE TRAIN USING AUTO BRAKES
WHAT ARE THE INDICATIONS GIVEN FOR ELEC AND EP BRAKING SYS NOT OPERATING CORRECTLY AND POSSIBLE CAUSES
NO INDICATION ON TEST SCREEN IN TMS WHEN BRAKING
NO AMMETER READING ON CAR CONCERNED WHEN BRAKING
POTENTIAL DELAY IN TRAIN SLOWING WHILE BRAKING
WHAT WILL CAUSE ELEC BRAKE NOT TO FUNCTION
EP MCB TRIPPED
BH IN EMERG POSN
BOGIE HAS BANK MOTORS CUT OUT CAR CONCERNED
HSB TRIPPED CAR CONCERNED
LINE SW PROTECTION RELAY TRIPPED CAR CONCERNED
STICKING BRAKES
INDICATIONS
SLUGGISH TRAIN
GUARD CUSTOMER COMPLAINT SMOKE
TMS GIVES INDICATION OF STICKING BRAKES
PROC TO RECTIFY STICKING BRAKES
TRIP EP MCB
PLACE BH TO EMERG FOR 30 SECS
RECHARGE BP
IF BRAKES DO NOT RELEASE REPEAT THE ABOVE PROC
IF BRAKES ARE STILL STICKING
SECURE THE TRAIN
NOTIFY SIGNALLER ARRANGE FOR OROTECTION IF REQD
CALL GUARD FORWARD
LEAVE DRIVERS CONTROLS CUT IN WITH BH IN RELEASE AND RUNNING
RESET EP MCB
GUARD TO ACK VIGO WHEN LIGHT FLASHES AND STOP TRAIN USING EMERG BRAKES IF TRAIN MOVES
DRIVER LEAVES CAB AFTER CONDUCTING RISK ASSESS AND PROCEEDS ALONGSIDE THE TRAIN CHECKING BC GAUGES TO FIND OUT WHICH CAR HAS STICKING BRAKES
ONLY PROC WHERE BH IN REL AND RUN
STICKING BRAKES
PROC IF CAR WITH STICKING BRAKES IS IDENTIFIED
DRIVER CLOSES EP IC
DRAIN SUPP RES TO RELEASE BRAKES
DRIVER REOPENS EP IC
IF BRAKES REAPPLY EP BRAKES ARE DEFECTIVE
DRIVER ISOLATES EP AND DRAINS SUPP RES AGAIN
IF WHEN DRIVER REOPENS EP IC BRAKES DO NOT REAPPLY
AUTO BRAKES ARE STICKING
DRIVER CLOSES TV IC DRAIN SUPP RES
IF AUTOBRAKES ISOL ON TERMINAL ENDS SPB MUST BE WORKING IF NOT COVER VEHICLE REQD MOVE PAX AND NIGHTSAFE CREW MEMBER IN CAR MAX SPEED 25KMH
SPB DEFECTIVE
INDICATIONS
PB LGT FLASHES INTERMITTENTLY
DDU SHOWING EP PBFLT
SMOKE COMING OUT FROM THE BOGIE OF AFFECTED CAR
SPB DEFECTIVE
PROCEDURE
CYCLE PB FROM DRIVERS DASH
MANUALLY RELEASE PB BY ACCESSING LOCAL PB CONTROLS
LOCKER 5
IF PB DO NOT RELEASE OR AIR DISCHARGING
CLOSE BOGIE PBBC IC
PULL 2 MANUAL RELEASE HANDLES OUT AND IN 6-8 TIMES
IF CLOSING A BOGIE PB IC DOES NOT STOP AIR LEAK
CLOSE PBC IC
PULL 4 MANUAL RELEASE HANDLES OUT AND IN 6-8 TIMES
POWER AGAINST SPB RESTR
MAX 25KMH
CHECK EVERY 2KM
DEFECTIVE PANTO
INDICATIONS
POSSIBLE ARCING
PANTO NOT SITTING ON WIRE CORRECTLY
PROCEDURE TO ISOL DEFECTIVE PANTO
LOCATE CAR WITH DEFECTIVE PANTO
INFORM GUARD TO WARN PAX DOORS MAY BE CLOSED AND LGTS OFF FOR SHORT PERIOD
LOWER ALL PANTOS BY PRESSING PAN DOWN TRAIN LINED
ISOLATE DEFECTIVE PANTO BY CLOSING PIC
TRIP PANTO COMP MCB
PRESS PAN UP TO RAISE REMAINING PANTOS
VISUALLY CHECK ISOLATED PANTO HAS NOT RAISED
AFTER ISOLATING DEFECTIVE PANTO ALSO ISOLATE
COMP TRIP MAIN COMP AND COMP SYNC MCB AOD ALTERNATIVE SIV WILL PROVIDE FULL LGTS 1/2 AIR COND BATT CHARGING
NO 240VAC NO HEADLTS FOGLTS IF LEAD CAR
INDICATIONS DEFECTIVE BELLOWS
LOSS MR AIR
ROUGH RIDING IN CAR
TMS WILL REGISTER FAULT
ONE DEFECTIVE BELLOWS
PROC
CLOSE BELLOWS IC
NOTIFY MECH CONTROL
MAX SPEED 65KMH
BOTH BELLOWS ON CAR DEFECTIVE
PROC
CLOSE BOTH AFFECTES BELLOWS IC
NOTIFY MECH CONTROL
MAX SPEED 65KMH
WHAT ARE MIN REQMTS FOR ELECTRIC TRAINS WITH W W W NOT WORKING
RESTRICTED SPEED
POSSIBLE INDICATIONS FOR LOSS MR AIR
MR GAUGE SHOWING DROP MR AIR COMPRESSORS RUNNING CONTINUOUSLY MR LEAKAGE FROM EQUIP THAT USES MR AIR SPB WILL COME ON SIV WILL STOP WORKING AFTER REDUCTION MR AIR <450kPa PANTOS LOWERING AS LAST ONE
LOSS MR AIR
PROC
BRING TO STAND AND SECURE NOTIFY SIGNALLER AND OBTAIN PROTECTION CUT OUT CONTROLS PROCEED ALONG TRAIN AND LISTEN LOUD BLOW OF AIR IF POSS ISOL PIECE OF EQUIP
MR FAILURE
CAR 1
CLOSE MR THROUGH COCKS LOWER AND ISOL PANTO TRIP MAIN COMP, COMP SYNC, PANTO COMP SIV NO HEADLT STOP BEFORE LVL XING CUT OUT MOTORS TRIP EP MCB SPB PULL OFF MOVE PAX AND NIGHTSAFE PVRV GUARD OPEN DBCIC, EMERG ONLY MAX 25KMH NO WHISTLE RESTRICTED SPEED NO BELLOWS MAX 65KMH
MR FAILURE
CAR 8
CLOSE MR THROUGH COCKS LOWER AND ISOL PANTO TRIP MAIN COMP, COMP SYNC, PANTO COMP CUT OUT MOTORS TRIP EP MCB CAR 1 SPB PULL OFF MOVE PAX AND NIGHTSAFE NO BELLOWS MAX 65KMH
MR FAILURE
CAR 2
CLOSE MR THROUGH COCKS CUT OUT MOTORS NO EP CAR 2 SPB PULL OFF MOVE PAX AND NIGHTSAFE NO BELLOWS MAX 65KMH
MR FAILURE
CAR 3
CLOSE MR THROUGH COCKS CUT OUT MOTORS NO EP CAR 3 SPB PULL OFF MOVE PAX AND NIGHTSAFE NO BELLOWS MAX 65KMH
MR FAILURE
CAR 6
CLOSE MR THROUGH COCKS CUT OUT MOTORS NO EP CAR 6 SPB PULL OFF MOVE PAX AND NIGHTSAFE NO BELLOWS MAX 65KMH
MR FAILURE
CAR 7
CLOSE MR THROUGH COCKS CUT OUT MOTORS NO EP CAR 7 SPB PULL OFF MOVE PAX AND NIGHTSAFE NO BELLOWS MAX 65KMH
MR FAILURE
CAR 4
CLOSE MR THROUGH COCKS CUT OUT MOTORS NO EP CAR 4 SPB PULL OFF MOVE PAX AND NIGHTSAFE NO BELLOWS MAX 65KMH LOWER AND ISOL PANTO TRIP MAIN COMP, COMP SYNC, PANTO COMP MCB
MR FAILURE
CAR 5
CLOSE MR THROUGH COCKS CUT OUT MOTORS NO EP CAR 5 SPB PULL OFF MOVE PAX AND NIGHTSAFE NO BELLOWS MAX 65KMH LOWER AND ISOL PANTO TRIP MAIN COMP, COMP SYNC, PANTO COMP MCB
DIFF IN SPD FOR MR FAILURE BETWEEN CAR 1 and 8
CAR 1 RESTRC SPD
ALL OTHER CARS 65 KMH
LOCATION OF CR1 DT
OPPOSITE 1HT AND DS1
LOCATION CR1 MOTOR CAR
OPPOSITE 2HT
CR1 IS WITH DS1 SO DS1 AND 2HT ON OPP SIDES
ISOL COCKS FRONT OF DT
BP THROUGH COCK BV CA ELEC HEAD MR THROUGH COCK UM SSA
MRS ISOL COCK
UNDER DRIVER
WHICH ISOL COCK UNDER DRIVER
PB OR BC
PB
BELLOWS ISOL COCK
ON MR SIDE
CR2 ON DT
DOESNT EXIST
ONLY DS2 ON MR SIDE
DT BRAKE SYS
EP MR SIDE ALSO LC
TV AND SR ON BP SIDE
MOTOR CAR BRAKES SYS
EP ON BP SIDE AND LC
TV WITH EP
PROB IS SR ON MAIN RES SIDE
CR2 MOTOR CAR
CR2 3HT DS2 ALL ON MAIN RES SIDE
AFTER TESTING EMERG BRAKE AND THEN FULL SERVICE
WHY DOES BP REBUILD TO APPROX 300
IS THE EQUALISING RES AIR FILLING THE BP
DIFFERENCE BETWEEN TVIC CLOSED AND SUPP RES DRAINED
IF SUPP RES PARTIALLY DRAINED WILL STILL GET SOME BRAKES APPLYING
SUPP RES COMPLETED DRAINED NO BRAKES AT ALL
HOW DOES AUTO WORK
REDUCTION IN BRAKE PIPE AIR CREATES A DIFFERENCE BETWEEN BP AND SUPP RES.
SUPP RES FEEDS THE BC VIA THE TV SENSING THE REDUCTION IN BP AIR
WHAT ISOL COCK CONTROLS ALL DOORS ON DT
CR1
